The bedroom measures 3.7 meters in length from north to south and 3.5 meters from east to west. When choosing between a 1.5-meter or 1.8-meter bed, it's important to consider the available space. Many people might think there’s enough room, but an interior designer would quickly advise that a 1.5-meter bed is more suitable for this space. This decision isn’t arbitrary—it’s based on standard dimensions and ergonomic principles that ensure comfort and functionality.
Interior designers are trained to quickly assess space and make recommendations based on well-established measurements. These aren't just random numbers—they follow national standards and are refined through years of professional experience. Each designer carries a set of reference dimensions, which is part of what’s known as ergonomics. This field focuses on designing spaces that fit the human body, making everyday tasks easier and safer.
Even though every home layout is unique, the basic dimensions of the human body remain relatively consistent. Knowing these key measurements can help homeowners make better decisions when selecting furniture. For example, a wardrobe is typically designed with a depth of 600 mm, which accommodates the average shoulder width of a person. If the door is sliding, the depth may be slightly increased to allow for the track. However, if the family members have narrower shoulders, a 550 mm deep wardrobe could work better. Anything less than 500 mm is generally not recommended, as it becomes impractical.
Cabinet depths usually range between 550 mm and 600 mm, while drawer heights are often between 300 mm and 350 mm. The distance between cabinets is typically around 800 mm, and the height of the cabinet is commonly set at 850 mm. These dimensions are based on the average height of most users, which is between 150 cm and 165 cm. This ensures that the cabinets are easy to access and use without strain.
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In addition to wardrobes and cabinets, other furniture like shoe cabinets, dining tables, and chairs also follow specific "standard body" measurements. A shoe cabinet should be at least 300 mm deep to accommodate shoes comfortably, and the height of a bed is usually around 450 mm. Dining tables are typically 750 mm high, while dining chairs range from 400 mm to 450 mm. Bookshelves should be at least 22 cm deep to hold books properly, depending on their size.
These dimensions are not only based on national standards but also on practical experience. Designers often share these insights with clients to help them make informed choices. It’s worth noting that Western furniture tends to be larger than Chinese furniture. For instance, a typical Chinese dining table is 700–800 mm high, while a Western-style table is at least 760 mm. Similarly, the height of dining chairs increases proportionally.
Beyond furniture, safe distances are also crucial in home design. Senior designer Mr. Duan emphasizes the importance of understanding construction specifications early on, especially when laying out electrical wiring. He warns against outlets placed too low on the floor, as they pose a risk of electric shock. Guardrails on windows and stairs must also meet safety standards—no more than 11 cm apart, and at least 1.05 meters high—to prevent accidents, especially for children.
By paying attention to these details, homeowners can create a space that is both functional and safe. Understanding the “standard body†of furniture and the importance of proper spacing can make a big difference in the overall comfort and usability of a home.

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